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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (C) 2021 Oracle. All Rights Reserved.
#
# FS QA Test 242
#
# Test that fstrim can run on the degraded filesystem
# Kernel requires fix for the null pointer deref in btrfs_trim_fs()
# [patch] btrfs: check for missing device in btrfs_trim_fs
. ./common/preamble
_begin_fstest auto quick volume trim
. ./common/filter
_supported_fs btrfs
_require_btrfs_forget_or_module_loadable
_require_scratch_dev_pool 2
_scratch_dev_pool_get 2
dev1=$(echo $SCRATCH_DEV_POOL | $AWK_PROG '{ print $1 }')
_scratch_pool_mkfs "-m raid1 -d raid1"
_scratch_mount
_require_batched_discard $SCRATCH_MNT
# Add a test file with some data.
$XFS_IO_PROG -f -c "pwrite -S 0xab 0 10M" $SCRATCH_MNT/foo | _filter_xfs_io
# Unmount the filesystem.
_scratch_unmount
# Mount the filesystem in degraded mode
_btrfs_forget_or_module_reload
_mount -o degraded $dev1 $SCRATCH_MNT
# Run fstrim, it should skip on the missing device.
$FSTRIM_PROG $SCRATCH_MNT
# Verify data integrity as in the golden output.
echo "File foo data:"
od -A d -t x1 $SCRATCH_MNT/foo
_scratch_dev_pool_put
status=0
exit
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